Spring-motor for music-boxes



(No Hodel.)

G. OTTO. SPRING MQTOR FOR MUSIC BOXES.

No. 5259717. Patented Sept. 11,1894.

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UNITED STATES PATENT 1 OFFICE.

GUSTAV OTTO, OF JERSEY CITY, NEW JERSEY.

SPRING-MYO'TORVFOR MUSIC-BOXES.

SPECIFICATION forming of Letters Patent No. 525,717, dated September 11, 1894.

Application filed A ril 12,1894. Serial No. 507,223. (No model.)'

To all whom it may concern:

Be it known that I, GUSTAV OTTO, a resi dent of Jersey City, county of Hudson, State of New Jersey, have invented certain new and useful Improvements in Spring-Motors for Music-Boxes, of which the followingis a specification.

My invention relates to spring motors, and has for its object to produce a spring motor which is specially adapted for use in musical i instruments of the self-playing variety, al-

though it may be used in various situations where it is desirable to have a spring motor which will run for a considerable length of time.

To this end my invention consists in the construction set forth herein, illustrated in the accompanying drawings and more particularly pointed out in the claim, together with all analogous structures which, in view of the prior art, may justly be regarded as equivalent structures.

In the drawings-Figure 1 is a plan view of a music box mechanism showing one form of my invention applied thereto. Fig. 2 is a section through the box showing in side elevation the spring motor mechanism. Fig. 3 is a broken away plan view of the spring mechanism, and Fig. 4 is a section on line 44 of Fig. 3.

In the drawings, a is a suitable shaft mounted in bearings b. On vthis shaft is mounted a suitable drum or other suitable reel mechanism a. Mounted also upon the shaft a is a gear wheel d, preferably a bevel gear, although other suitable forms may be used. Gearing with this wheeld is a suitable gear wheel e carried by ashaft f on the framework g of the mechanism. From this gear e motion is communicated to agear h carried by shaft '6 which communicates motion'to the main shaft 3' of the music box or other device through the medium of suitable gearing, such as the gears is Z.

Mounted in a suitable carrying frame shown as consisting of the rods are m are suitable elliptical springs 11, the ends of which extend between and are guided by the rods m m. These springs 12 are preferably connected in pairs by means of suitable guide and clips 19,

'the cord t.

as shown,to suitable follower plates 0 mounted in the carrying frame with lugs on the ends thereof which project intotthe spaces formed between the guide rods By this means the plates 0 and the springs 01 form a super posed pile which exerts its tension in one line and prevents all lateral play of any of the separate parts. One of the end springs n of the series bears against the side of the music box or other suitable bearing surface (or a head or cross piece may be provided rigidly secured to the carrying frame. to form the bearing for the springs). Bearing against the other end of the series of springs is a cross head or follower plate q mounted upon the carrying frame and sliding thereon, and held in position upon'the said frame by long bearings r. Connected to this cross head, preferably to a lug 8 extending upwardly therefrom, a

main shaft through a train of gearing 1, 2, 3,

4, 5 or other suitable connect-ion.

In order toset theapparatus for operation the drum 0 is rotated by hand to wind the cord t, thus compressingthe series of springs n and causing them to exert their tension on to the desired extent and the springs n compressed to the desired degree, the rotation of the drum 0 may be suspended and any suitable mechanism (not shown) thrown into action to prevent the spring from holding the mechanism from motion and from returning to its original form. Upon releasing the stop mechanism the spring will return to its original form to actuate the mechanism in a well understood manner.

What I claim, and desire to secure by Letters Patent, is-

In a spring motor, the combination of a train of gears, suitably supported rods m, elliptical springs n, the ends of which extend between said rods m and are guided thereby, follower and guide plates 0 interposed be- When the cord has been wound tween each pair of the elliptical springs, said the cross-head to said train of gears substm- Vfollower plates having lugs on the ends there of which project between and are guided by the rods m and clips 19 for connecting the springs to the follower plates, and cross-head. q having long bearings a" sliding upon the rods m and means for communicating motion from tially as described.

GUSTAV OTTO.

Witnesses:

HARRY M. TURK, l GEO. E. MORSE. 

